Machine for making separable fasteners



|Apfi1g28x,194z. MPO@ 281,008

MACHINE Fon MAKING SEPARABLE FAsTENERs original Filed No zo, 1933 5 Sheetsheet l INVENTOR. Mez JPau.

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TTORNEY.

1 April 28, 1942. NMI. F'OUX 2,281,008

MACHINE FOR MAKING SEPARABLE FA STENERS Original Filed Nov. 20,1933 3 'Sheets 5heet 2 lex/WMM.

A TT ORNEY 1 N. J. Poux "2,281,008" MAcHrNEaFoR MAKING' SEPARABLE, FASTENERS original Filed Nov. 2o, Ii933 `3 sheetspsheet 3 April 28,1942.

` INVENTOR. Mel .7. Pauw.

` Pntented pr.28, 1942 m UNITED STATES PATENT OFFICE 1 "zzaroos" v N n' originan .minimal Nmmber zu, `1933, serial i No. 698,801. Divided and this application c- 8 an end elevation of this machine.

tober 28,` `1939, Serial N0. 301,852 t i t l l 3 Claims.` Ihisinvention relates to machines for manufncturing slide fasteners and is a division of my dated May 2s, 1940.

The principal object of my invention is to proy vide lan improved machine-for manufacturing r slidefastener Stringer-s from` preformed stripsI ofslide fastener members. According to the in- In general` the machinemis operated automaticallytoforce a strip on a plurality'of tapes 4| 1each of which has a beaded edge` 45 for .receiving the jaw portions of the fastener members.

is shown in Figs. 1 and 2.` A `carrier 48 is slidingly mounted on a frame` 50. The carrier has: l

a strip receiving socket i9 and is: adapted to be; actuated by levers carried by pins1ii2 mounted vention preformed strips of` members with the 10 on the frame.y The levers have an operating rod s members arranged `cross-wise` in the` strip and 53 `so that they may bereadilymoved forward. integrally joinedtogethenare fedto the machine Stringers 45 are carried through guides 55 and and a multipieof stringers are made at;one time, preferably extend to a feeding mechanism adthe number of stringersdepending `upon the vanced Qas the carrier is operated, such feeding number of members in each'of the1 strips. Inl' mechanism being omitted in Figs.` 1 to `5. Presthei operation `of the machine, `each strip is l sure fingers 56 are arranged on the guide spaced severed and the various members cfa strip are l above and below a part of the stringer which is `simultaneously` attached, one to` each of a `plu-` about to receive astrip. The Stringer is drawn m'rtiiy ntpes "te l m i be tri in trices hmughiiath tneinig' Tuhihaccopnhd `eseasnermernrsp usa yprov gaa"`wc ereao-` consists of a series oflslide fastener lmemberslla tom Slot lla and a slot 58 in the side wall. `The arranged side by side in the Strip and integrally` Stringer forms a closure withj these Slots as the connected by a rib 1I to `which each `of the fas- Stringer is advanced andlthe ribbed edge of the tener members are connected to this rib atthe Stringer is `saturated with `a solvent,l such as `ends in which the head portionsla` of `the slide acetone.` As theistringer is advanced the finished fastener members are formed So` that the jaw strips are forced forward, compressing the ribbed portions Ilofjeach slide fastener member project` edgesyof the Stringer into the slots 32. The fromthat side of the strip opposite the rib Il; solventcarried by the Stringer operating onthe In the accompanying drawings `I have shown material such as Celluloid produces a cement for purposes `of illustration some embodimentsiO which securely fastens the jaws to the Stringer. s which my `1111'011121011 myasllmeyin Dratie. `111 This solvent as it evaporates leaves this cement the drwihs with sufficient tenacity to hold the members in Fis- 1 shows a plan view 0f machine forcing piace until the Sommers sufficiently ldissipated the `beaded edges of the Stringer! 111119 810W` Y to permit the cement to' finally set. fmed`by1thejaw 35 After the strips are thus placed on a `plurality m-`3 1de elevation pam? 1m muon-0f of stringers the members` may be severed, one wd machine; from another.` in any `convenient Mmanner, a 2T a `911m VieWQf" the tape mating method and tool for accomplishing `thisbeing tank shown in Fig. 5 `where the strip is severed off the 'a' man View of an alternative form of 4o front ofthe members,:thus severing the members of a strip. This tool comprises a frame 59 with g; :loggigibfyugglg steuon'l oste; a 'backingl and severing blade B0 which is placed t under the member. An opposing shear blade 6| into the slots between thejaws and for separating. is arranged above the rib n andi is i pivoted to s the strips of interlocking members, l l l i Fig 5 a manner the frame at 62. Links B3 are secured to the param the sm wh 1 blad sl and are mounted c tri s4 placed on the stringere as,` forinstance, inwthe e I .one een cs car indemne shownmmfz; I ried by `a rock shaft ila. `The rock yshaft is m. 6, an elevation showing an alternative `operated by a lever l5 and as thislever is swung method and apparatus for severing the interthe blade isbmught dolmmt? shearingel locking members bathe strips; tion through the action ofthe eccentric and a verticallsection of an automatic ma-` srlgru rib u from u?? members, thus chineafor lac the interlockin members on I the otdiggers; nd g Another method is shown in Fig'.` 6 wherein a grinding wheel ofsufiicient lengthis adapted Y acts as a guide andstop for the member rib 28.

The blades 18 project from a bar 12. The bar '12, is mounted on a rod 18 and the rod-18 is operated by levers 14 connected by an operating rod 18. A bell crank lever 18 operates on the carrier 81. This'leveris mounted on a pin 11 arranged on and into the slots of the strip carried thereby as the carrier 88 is reciprocated toward the rear. After the rib of the stringer is compressibly forced into theslots 82 of the strip the next forward movement of the carrier withdraws the tape and with it the strip so secured. The tape is then advanced by mechanism hereinafter described and on the return movement of the tape a post 18 projecting from the frame. One arm 18 of thebell crank lever is connected by a link 88 with a foot pedal 8|. n

The tape is saturated and guided into position in the same manner as the structure shown in Fig. 2. The strip is placed on the base 88 and secured thereon by the notched end of the shear blade 18. The operator then depresses the foot pedal and forces the strip on to the beaded edge of the tape.- At the completion of this operation the operator, by forcing the lever 18 forward, operates'the shear blade 18 and severs the rib 28,4 thus vseparating the members on the tape.

In Figs. 'Zand 8 I have shown kan automatic machine for placing the strips on the tapes and for treating the tape and the finished members. The machine is formed with a frame 82. A carrier'88is slidingly mounted on this frame. A cam wheel 88 having a cam slot 85 operates through a'roller 88 to reciprocate the carrier 88. The cam is mountedI on a shaft 81. A gear 88 is fixed on the shaft 81 and meshes with agear 88 fixed on a shaft 88 and the shaft 88 is driven from some source of power (not shown). A workrest 8| provided with grooves 82 for receiving the projections 25a on the strips 28a is mounted on the carrier 83. The work rest has a stop shoulder 81 at its rearedge which engages the rear of theV strip 28a so as to enable it to force the strip forward Vfor engagement with the tape. Strips are fed to the work rest from a guide magazine 88 with each reciprocation of the carrier 88. A work feeding wheel 88 is provided with work receiving sockets 88'and as the carrier 88 Ais moved forward a strip 24a is moved forward with the work rest and forced into the work receiving socket 88, this being provided with an extension |88 receiving the connecting rib 28 so as to firmly engage the member strip 28a. The wheel is xed on a shaft |8|. The wheel is advanced' 90 `with each cycle of the machine and after a moviement of 180 is brought opposite the tape. In order to make these advances and provide'the necessary dwell at the different stations the shaft |8| is driven by a Geneva movement havingone member |82 fixed on'the shaft |8| and a companion member fixed on the shaft 81 so that with each complete rotation of the shaft 81 which has anequal speed ratio with the drive shaft 88, the feeding wheel is advanced 90 and thenretained during a large part of the cyclethrough the dwell ofV the Geneva movement.. A tape guide |84 is mounted on the vcarrier 88. This is provided with the proper guiding slots for the tape. A saturating tank |85 is also arrangedon the carrier and has a slot, the tape extending through the slot |88 in the` manner more denitely shown inplan view in Fig. 2a. Pressure :fingers |81 are provided in the guide |88 to force the tape forward toward the feeding wheel thefstrip last attached is carried forward over a face |88 on the feed wheel. The member strip i in the nal position projects over the face |88 leaving the uniting strip, or Yrib 26 beyond a shear face |88'. A shear blade H8 is mounted on areciprocating bar and the bar is slidingly mounted in the frame. 'I'he bar is provided with a roller ||2 which extends into a cam slot ||8 in a cam wheel III. The cam wheel is fixed on the drive shaft 88. The timing of the cam is Asuch that during the period thatthe tape is in vits forward position the knife, or shear H8 is dey 4pressed `and severs the'uniting strip or ribV 28, thus disconnecting the several members as they lare secured on the tape.

The tape is carried over a feed wheel H5. This feed wheel may be of any convenient structure so asuto engagerand advance the tape as it is carried over it. It is fixed on a shaft H8. A gear ||1 isalso fixed on the shaft and meshes with a gear |l8. 'I'he gear ||8 is carried by a shaft H8. A Geneva movement is provided, one

.member |28 of which is mounted on the shaft |18. 'I'he other member, 12| of this movement,-

stations so spaced as to advance the tape the l distance of one interlocking lmember witheach cycle of the machine. The tapesv are carried around a wheel |28. This wheel is mounted on'a shaft |21 and the shaft is driven by a sprocket chain |28 operating on Va sprocket |28a on theV shaft and driven from a sprocket |28b on the shaft V88. The tapes are also carried over the feed rolls |28. These rolls are mounted on a shaft |88 and driven by a chain |8| extendingv from sprockets |8|a on the shaft 81 and operat- .ing onta sprocket |8|b on the shaft |38. A

tank |82 is mounted in the base of the frame and a solvent, such as acetone, is maintained at a level in this tank to immerse the interlocking members on the tape as the tape is advanced..

This solvent working on such materials as Cellucid dissolves a sufficient amount ofthe surface as to smooth'the corners and rough edges and give to the surface a polished effect. It will be seen, therefore, that this machine as it is operated automatically takes the united strip from the guide 88, delivers the same to the feed wheel, is carried by the feeding wheel into position to receive the tape and at the tape position the tape is forced compressibly into the slots of the members on the strip, the tape isadvanced and the uniting strip severed, thus disconnecting the members on 'adjacent tape. The tapes so advancedare advanced through the feeding mechanism, step by step. A saturating tank is provided so that the tape as it vadvances to receiveVV the members is saturated with the solvent forming with the Celluloid a securing cement so that the members as forced into place are at the same time cemented on the stringer. 'I'he tapes are advanced so as to immerse the members and thus dissolve the surface to an extent to smooth the corners and the surfaces.`

While l. have `shown and `described `in this 3 application `several embodiments which my in-` vention may assume in practice, it will be ,under- Stringer, means for applyinglinterlocking mexn- `bers thereto, and meansfor supplying cement for the engaging surfaces comprisinga tank, a slot in the tank through which the Stringer is drawn, 1 the Stringer being related to the slot to seal the:

slot. y

` 2. In a `machine for making separable fasteners ofthe `class described, the combination of means for guiding a pluralityoi' stringers" in t closely spaced parallel relation, means for feeding said stringers lengthwise step by step through the stx'ingerl guide means. means for feeding to a position adjacent `the edges of said stringers, fastener member units eachofwhich consists of a plurality of integrally united fastener members.

the fastener members in each unit corresponding in number and spacing to said parallel stringere. and means operating in timed relation to said Stringer feeding means and said unit feeding' means for simultaneously attaching the members of each unit one to each of said stringers.

3. `In a machine for making separable fasten- -ers of the class described, the combination of a` guide for a plurality of stringers held in closelyA spaced parallel relation, `means for feeding said stringers lengthwise step by step throughthe guide. means for supplying strips of fastener members each of which strips consists of a plurality of fastener members joined together, they 15 members in each `strip `corresponding in number and spacing to said parallel stringers, a transfer wheel having means for receiving said strips one ata time from said supply means, meansfor moving said wheel to transfer said strip to a position opposite the `edges of said stringers in said guide, and means formoving said guide to force saidtapes into engagement with said yfastener 'members in the wheel whereby the members in the strip are attached simultaneously one to each of said stringers.

y i NOEL J. POUX. 

